Candidate for the 2017 presidential election Francois Fillon, former French Prime Minister, member of the Republicans and candidate of the French centre-right prepares before a debate organised by French private TV channel TF1 in Aubervilliers, outside Paris, France, March 20, 2017. REUTERS/Patrick Kovarik/Pool

Candidate for the 2017 presidential election Francois Fillon, former French Prime Minister, member of the Republicans and candidate of the French centre-right prepares before a debate organised by French private TV channel TF1 in Aubervilliers, outside Paris, France, March 20, 2017. REUTERS/Patrick Kovarik/Pool